Why don't you say the name of your app?
It looks like you are just trying to get us to download it.
It calls DTRecorder, people can download from App store/Google play. However, I still suggest to contact through telegram to get the guide how to do recording properly.
What is the point to write app, if it doesn't have support chat and without proper guide people can't use it?
Also, please if you willing to join, first contact us through telegram and after feel free to download the app.